CN206580748U - The composite phase-change heat-storage brick of refractory material cladding - Google Patents
The composite phase-change heat-storage brick of refractory material cladding Download PDFInfo
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- CN206580748U CN206580748U CN201621337583.8U CN201621337583U CN206580748U CN 206580748 U CN206580748 U CN 206580748U CN 201621337583 U CN201621337583 U CN 201621337583U CN 206580748 U CN206580748 U CN 206580748U
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Abstract
The utility model belongs to energy storage material field, and in particular to a kind of composite phase-change heat-storage brick of refractory material cladding.The composite phase-change heat-storage brick includes：Refractory enclosures, composite phase change heat-accumulation material inner core, one layer of refractory enclosures are coated in composite phase change heat-accumulation material core surface, form standard size brick, common brick or special shaped brick with definite shape and size.The utility model had both met the high accumulation of heat of heat storage medium requirement and the requirement of good heat conductive ability, while improving heat-storing material intensity, heat storage capacity stability and reliable long-term working.The composite phase-change heat-storage brick of the utility model refractory material cladding makes full use of sensible heat and latent heat heat-storing method; efficiency of energy utilization can be effectively improved; environmental protection, has important application prospect in fields such as the energy-conservations of solar thermal utilization, low ebb electric power storage, the utilization of industrial exhaust heat Waste Heat Recovery and industry and civil buildings and air-conditioning.
Description
Technical field
The utility model belongs to energy storage material field, and in particular to a kind of composite phase-change heat-storage brick of refractory material cladding.
Background technology
The energy is basis for the survival of mankind, the problem of energy problem is the most serious that China's socio-economic development faces
One of, the development and utilization of the energy is the key factor and important class for being related to China's sustainable development and people's living standard
Topic, the key technology of Renewable Energy Development, recovery used heat and the saving energy has important application value.
Between heat supply and demand in quantity, form and often difference is there is on the time, it is necessary to take heat-storage technology
Stored etc. means and discharge heat, made up these differences, thermal source is utilized effectively.Heat-storing method generally have using sensible heat,
The mode such as chemical reaction and latent heat (phase-change thermal storage).Sensible heat heat accumulation is to utilize material itself thermal capacitance, is storing and is discharging heat energy
During, the change of temperature only occurs for material, and heat accumulation mode is simple in construction, and cost is relatively low, but energy storage density is relatively low, storage and
The temperature change of material is larger when discharging heat energy, is unfavorable for the temperature control of heat transferring medium, energy storage density is low in addition, regenerative apparatus
Bulky, construction cost is higher.Conventional researching of sensible heat storage material mainly has magnesia brick, concrete, rock, water, molten salt, mineral
Oil etc..The reversible chemical reaction fuel factor that chemical reaction heat storage occurs when being using material realizes heat accumulation or heat release, stores up
Heat density is big, but technical sophistication, higher to equipment requirement.Phase change energy storage technology is attached in its phase transition temperature using phase change heat storage material
The heat of transformation closely occurred heat is absorbed or discharged from environment, reaches energy storage, exoergic or control environment temperature purpose.Phase-change thermal storage
Material heat storage capacity is big, and storage density is high, can effectively improve efficiency of energy utilization, at the same equipment is simple, small volume, design spirit
It is living, easy to use, solar thermal utilization, the peak load shifting of electric power, industrial exhaust heat Waste Heat Recovery utilize and it is industrial with it is civilian
The field such as building and the energy-conservation of air-conditioning has important application prospect.
Solid-liquid phase change material is divided to two kinds of organic matter and crystalline inorganic thing, and organic solid-liquid phase change material includes some alcohol, acid, height
Level alkane etc., with solid forms mouldability preferably, be less prone to phases separation, material corrosive properties are smaller, performance comparision is stable, malicious
The advantages of property is smaller, but thermal conductivity factor and density are smaller, energy storage density is relatively low, price is higher, fusing point is relatively low, and it is volatile, easy
Burning and aging, are not suitable in high temperature applicationss application.Inorganic high-temp phase-change material has high-temperature fusion salt, part alkali, salt-mixture etc..
High-temperature fusion salt includes fluoride, chloride, nitrate, sulfate, carbonate etc., and phase transition temperature is from hundreds of degrees Celsius to thousands of
Degree Celsius, latent heat of phase change is larger, steam is forced down.Salt-mixture heat of fusion is big, and Volume Changes are small during fusing, and heat transfer is preferable, particularly
Its melting temperature is adjusted between can making the phase transition temperature of energy storage material as needed from hundreds of degrees Celsius to thousands of degrees Celsius, be by
Widely studied and application high temperature heat transfer heat storage medium.
There is high temperature corrosion and fused salt in use in high-temperature fusion salt phase-change material.Fused salt is to heat-exchange tube
And other affiliated facilities have very strong corrosiveness, add operating cost, reduce system safety and stability performance and make
Use the life-span.Fuse salt phase-change material density in fusing or solidification is changed, and void nucleation is caused in container, increases and leads
Thermal resistance, and local hot spot is produced, make container damage and reduce the container life-span.In addition, fuse salt phase-change material thermal conductivity factor is general
All over relatively low so that the lack of homogeneity of heat accumulation and heat release, melting rate is small, and energy-accumulation material utilization rate is not high.
Have with the composite heat storage material that inorganic salts phase-change material is constituted with ceramic sensible heat energy storage material using ceramic based material
Some high temperature resistants and the characteristic such as corrosion-resistant, enhance the diabatic process of phase-change material, overcome the deficiency of the two, not only accumulation of heat is close
Degree is big, the capacity of heat transmission is strong, and original shape of energy-accumulation material can be kept before and after phase transformation and a constant load is born, and solves phase transformation
Heat-storing material liquid phase is leaked and etching problem.Composite heat storage material can reduce heat-storing material consumption, reduce container dimensional, be expected to
Increase substantially the economy of hold over system.But it is close to improve accumulation of heat in inorganic salts Ceramic Composite heat-storing material preparation process
Degree adds substantial amounts of inorganic salts phase-change material in the material, while the volatilization to prevent inorganic salts, composite heat storage material needs
Sintered under far below ceramic nominal sintering temperature, therefore the intensity of composite heat storage material is relatively low.In use, nothing
Machine salt Ceramic Composite heat-storing material can cause phase-change material to subtract due to the dispensing volatile of inorganic salts or decomposition under hot conditions
It is few, composite heat storage material heat storage capacity is constantly declined.
Utility model content
The purpose of this utility model is to provide a kind of composite phase-change heat-storage brick of refractory material cladding, stored in composite phase-change
The certain thickness refractory material of hot material Surface coating, solves the energy-accumulation material that inorganic-phase variable heat-storing material is present in the prior art
The problems such as utilization rate is not high, heat storage capacity constantly declines and existing composite phase change heat-accumulation material intensity is not high, service life is relatively low.
The technical solution of the utility model is：
A kind of composite phase-change heat-storage brick of refractory material cladding, the gitter brick is in composite phase change heat-accumulation material Surface coating
One layer of refractory material；Wherein, in parts by weight, composite phase change heat-accumulation material includes 10~90 parts of ceramic material, inorganic phase
Become 5~80 parts of material, 0.5~40 part of highly heat-conductive material；In parts by weight, refractory material includes ceramic material 50~95
Part, 0.5~30 part of bonding agent, 1~40 part of highly heat-conductive material.
The composite phase-change heat-storage brick of described refractory material cladding, in parts by weight, composite phase-change heat-storage preferably
Material includes 40~80 parts of ceramic material, 10~70 parts of inorganic phase-changing material, 1~19 part of highly heat-conductive material；According to parts by weight
Meter, refractory material preferably includes 70~90 parts of ceramic material, 1~20 part of bonding agent, 3~23 parts of highly heat-conductive material.
The composite phase-change heat-storage brick of described refractory material cladding, gitter brick is standard size brick, common brick or special shaped brick.
The composite phase-change heat-storage brick of described refractory material cladding, the thickness of refractory material is 1 millimeter~400 millimeters, is stored
The refractory thickness that the hot each bread of brick covers is identical or different.
Added in the composite phase-change heat-storage brick of described refractory material cladding, composite phase change heat-accumulation material and refractory material
Ceramic material is magnesia, aluminum oxide, silica, chromium oxide, iron oxide, zirconium oxide, ferrosilite, MgO-CaO, MgO-Cr2O3、
MgO-Al2O3、MgO-Fe2O3、MgO-SiO2, carbide, nitride, it is more than one or both of boride；Or, ceramic material
Expect for one or both of rubble, industrial slag, bauxite, flyash, slag powders, river sand, sea sand, mountain sand, artificial sand with
On.
Added in the composite phase-change heat-storage brick of described refractory material cladding, composite phase change heat-accumulation material and refractory material
Highly heat-conductive material is more than one or both of amorphous graphite, crystalline flake graphite, carbon fiber, CNT, Copper Slag.
Inorganic phase-changing material bag in the composite phase-change heat-storage brick of described refractory material cladding, composite phase change heat-accumulation material
Include one kind in fluoride, chloride, nitrate, sulfate, carbonate, acetate, salt-mixture, alkali, metal and alloy or two
More than kind.
Bonding agent in the composite phase-change heat-storage brick of described refractory material cladding, refractory material is waterglass, calcium aluminate
It is cement, silicon powder, alumina gel powder, Quadrafos, sodium phosphate, aluminum phosphate, solid water glass, magnesium chloride, boron glass, borax, general
It is more than one or both of logical glass, phenolic resin, pitch, rosin, paraffin.
The composite phase-change heat-storage brick of described refractory material cladding, composite phase change heat-accumulation material adds other additives 0.1
~10 parts, other additives are B2O3、Bi2O3、Cr2O3、Al2O3、SiC、Si3N4、B4C, silica flour, aluminium powder, magnesium powder, FeSi alloys,
CaSi alloys, lignosulfonates, Ppolynuclear aromatic salt, water-soluble resin sulfonate, tartaric acid, potassium tartrate, calcium tartrate,
Calcium sulphate dihydrate, calcium sulfite, ferrous sulfate, boric acid, calgon, phosphoric acid, di(2-ethylhexyl)phosphate are received, tri-sodium phosphate, phosphoric acid four are received,
It is more than one or both of disodium hydrogen phosphate, sodium pyrophosphate, alkyl phosphoric acid fat, disodium ethylene diamine tetraacetate, various humic acids.
Other 0.2~23 part of additives are added in the composite phase-change heat-storage brick of described refractory material cladding, refractory material,
Other additives are B2O3、Bi2O3、Cr2O3、Al2O3、SiC、Si3N4、B4C, silica flour, aluminium powder, magnesium powder, FeSi alloys, CaSi are closed
Gold, lignosulfonates, Ppolynuclear aromatic salt, water-soluble resin sulfonate, tartaric acid, potassium tartrate, calcium tartrate, two water sulphur
Sour calcium, calcium sulfite, ferrous sulfate, boric acid, calgon, phosphoric acid, di(2-ethylhexyl)phosphate are received, tri-sodium phosphate, phosphoric acid four are received, phosphoric acid hydrogen
It is more than one or both of disodium, sodium pyrophosphate, alkyl phosphoric acid fat, disodium ethylene diamine tetraacetate, various humic acids.
The utility model compared with the existing technology has the following advantages that and beneficial effect：
1st, under the premise of the high thermal storage density of gitter brick, suitable temperature in use scope, cheap etc. is ensured, this practicality is new
Type greatly improves the intensity of gitter brick, the stability of heat storage capacity and reliable long-term working.The heat conductivility of gitter brick is poor
Accumulation of heat and heat release can be caused difficult, electric heating element is easily burnt, increase thermal loss.In order to improve the heat conductivility of gitter brick,
Amorphous graphite, crystalline flake graphite, carbon fiber, CNT, copper are added in composite phase change heat-accumulation material and refractory material clad
The highly heat-conductive materials such as slag, meet high thermal storage density, quick accumulation of heat and the requirement of Fast exothermic of heat storage medium requirement.
2nd, the composite phase-change heat-storage brick of the utility model refractory material cladding is with inorganic phase-changing material and ceramic material
The certain thickness refractory material of composite phase change heat-accumulation material Surface coating of composition, heat-storing material is with definite shape and size
Standard size brick, common brick or special shaped brick.Amorphous graphite, scale stone are added in composite phase change heat-accumulation material and refractory material
The highly heat-conductive materials such as ink, carbon fiber, CNT, Copper Slag.Both high accumulation of heat and the good heat conductive of heat storage medium requirement had been met
The requirement of ability, while improving heat-storing material intensity, heat storage capacity stability and reliable long-term working.
Brief description of the drawings
Fig. 1 is one of structural representation of the present utility model；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is Fig. 1 B-B sectional views.
Fig. 4 is the two of structural representation of the present utility model；
Fig. 5 is Fig. 4 A-A sectional views；
Fig. 6 is Fig. 4 B-B sectional views.
In figure, 1, refractory material cladding composite phase-change heat-storage brick；2nd, refractory enclosures；3rd, composite phase change heat-accumulation material
Inner core；21st, activity closure one；22nd, activity closure two；23rd, activity closure three；24th, activity closure four；25th, activity closure five；
26th, activity closure six.
Embodiment
As shown in Figure 1-Figure 3, the composite phase-change heat-storage brick 1 of the utility model refractory material cladding mainly includes：Fire proofed wood
Shell 2, composite phase change heat-accumulation material inner core 3 are expected, in composite phase change heat-accumulation material inner core 3 Surface coating, one layer of refractory enclosures
2.So as to effectively solve the leakage of phase change heat storage material liquid phase and etching problem, prevent phase change heat storage material due under hot conditions
Dispensing volatile or decomposition cause phase-change material to reduce, it is ensured that composite heat storage material heat storage capacity.
As Figure 4-Figure 6, the composite phase-change heat-storage brick 1 of the utility model refractory material cladding mainly includes：Fire proofed wood
Shell 2, composite phase change heat-accumulation material inner core 3 are expected, in composite phase change heat-accumulation material inner core 3 Surface coating, one layer of refractory enclosures
2.Movable closure is respectively mounted in distinguishing perforate, the hole in six faces in six faces of refractory enclosures 2：Activity closure 1,
Activity closure 2 22, activity closure 3 23, activity closure 4 24, activity closure 5 25, activity closure 6 26, the hole in six faces with
Corresponding activity closure passes through wedge-like engagement.It is thus possible to as needed composite phase change heat-accumulation material inner core 3 is changed or
Supplement composite phase change heat-accumulation material.
In order that the technical solution of the utility model and advantage are clearer, carried out below in conjunction with specific embodiment detailed
Thin description.
Embodiment 1
In the present embodiment, composite phase change heat-accumulation material preparation process is inorganic salts phase-change material Na2CO3, ceramic material MgO,
Carbon fiber is according to 40 parts of parts by weight, 59.5 parts, 0.5 part of mixing, in nitrogen atmosphere 900 DEG C sintering compressing through 10MPa
8 hours.
Refractory material by calcium aluminate refractory cement, magnesia, silicon powder, crystalline flake graphite according to 10 parts of parts by weight, 60 parts, 20
After part, 10 parts of mixing, mixed 2~3 minutes in miniature water earth rubber sand agitator, water is gently added while stirring, makes water
Material compares 0.50.Refractory material is coated in composite phase change heat-accumulation material surface, coating layer thickness 30mm, natural curing 3 days, at 110 DEG C
At a temperature of dry 24 hours.
In the present embodiment, the endothermic peak of the composite phase-change heat-storage brick of refractory material cladding appears in 836 DEG C.
Embodiment 2
In the present embodiment, composite phase change heat-accumulation material preparation process is inorganic salts phase-change material Na2CO3(57wt%) and
Li2CO3The eutectic salts of (43wt%), ceramic material MgO, highly heat-conductive material crystalline flake graphite according to 40 parts of parts by weight, 59.5 parts,
0.5 part of mixing, compressing through 10MPa, 200 DEG C are handled 24 hours.
Refractory material by magnesium aluminate, magnesia, crystalline flake graphite according to 6 parts of parts by weight, 89 parts, 5 parts of mixing after, in miniature water
Mixing 2~3 minutes, gently add 5 parts of water in earth rubber sand agitator while stirring.Refractory material is coated in into composite phase-change to store
Hot material surface, coating layer thickness 20mm, pressurize 200MPa, is dried 48 hours at 180 DEG C.
In the present embodiment, the endothermic peak of the composite phase-change heat-storage brick of refractory material cladding appears in 510 DEG C.
Embodiment 3
In the present embodiment, composite phase change heat-accumulation material preparation process is inorganic salts phase-change material Na2SO4, ceramic material SiO2
Powder, highly heat-conductive material crystalline flake graphite are compressing through 10MPa according to 40 parts of parts by weight, 59.5 parts, 0.5 part of mixing.
Refractory material is by MgCl2, magnesia, crystalline flake graphite according to 2 parts of parts by weight, 93 parts, 5 parts of mixing after, in miniature water
Mixing 2~3 minutes, gently add 8 parts of water in earth rubber sand agitator while stirring.Refractory material is coated in into composite phase-change to store
Hot material surface, coating layer thickness 35mm, pressurize 150MPa, is dried 48 hours at 110 DEG C.
In the present embodiment, the endothermic peak of the composite phase-change heat-storage brick of refractory material cladding appears in 882 DEG C.
Embodiment result shows that the composite phase-change heat-storage brick of the utility model refractory material cladding makes full use of sensible heat and latent
Hot heat-storing method, it is flexible design, easy to use, efficiency of energy utilization can be effectively improved, environmental protection can be widely applied to too
It is positive can heat utilization, low ebb electric power storage, industrial exhaust heat Waste Heat Recovery utilize and the field such as industry and the energy-conservation of civil buildings and air-conditioning.
Claims (1)
1. a kind of composite phase-change heat-storage brick of refractory material cladding, it is characterised in that the composite phase-change heat-storage brick includes：Fire proofed wood
Expect shell, composite phase change heat-accumulation material inner core, one layer of refractory enclosures are coated in composite phase change heat-accumulation material core surface；
Movable closure is respectively mounted in distinguishing perforate, the hole in six faces in six faces of refractory enclosures：Activity blocks one, lived
Dynamic closure two, activity closure three, activity closure four, activity closure five, activity closure six, the hole in six faces is sealed with corresponding activity
It is stifled to pass through wedge-like engagement；
The shape and size of the composite phase-change heat-storage brick are standard size brick, common brick or special shaped brick.
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| CN201621337583.8U CN206580748U (en) | 2016-12-08 | 2016-12-08 | The composite phase-change heat-storage brick of refractory material cladding |
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| CN201621337583.8U CN206580748U (en) | 2016-12-08 | 2016-12-08 | The composite phase-change heat-storage brick of refractory material cladding |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081495A (en) * | 2019-03-07 | 2019-08-02 | 依科瑞德（北京）能源科技有限公司 | Phase-transition heat-storage floor tile |
| CN110144194A (en) * | 2019-05-31 | 2019-08-20 | 辽宁科技学院 | A kind of fly ash base solid-solid composite phase change energy-storing exothermic material and preparation method thereof |
| CN112851377A (en) * | 2021-01-23 | 2021-05-28 | 南京科技职业学院 | High-temperature structural ceramic material doped with polymer tubular fibers |
| CN115467463A (en) * | 2022-08-31 | 2022-12-13 | 河北工业大学 | Composite phase-change brick, preparation method thereof and wall |
-
2016
- 2016-12-08 CN CN201621337583.8U patent/CN206580748U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081495A (en) * | 2019-03-07 | 2019-08-02 | 依科瑞德（北京）能源科技有限公司 | Phase-transition heat-storage floor tile |
| CN110144194A (en) * | 2019-05-31 | 2019-08-20 | 辽宁科技学院 | A kind of fly ash base solid-solid composite phase change energy-storing exothermic material and preparation method thereof |
| CN112851377A (en) * | 2021-01-23 | 2021-05-28 | 南京科技职业学院 | High-temperature structural ceramic material doped with polymer tubular fibers |
| CN115467463A (en) * | 2022-08-31 | 2022-12-13 | 河北工业大学 | Composite phase-change brick, preparation method thereof and wall |
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